I am using Flow Simulation to model a thermoelectric cooler.  I have a TEC with an aluminum plate on the "cold" side and an aluminum heat sink on the "hot" side.  I got it to run steady state, but when I went back to add an 80W/°C thermal joint on each side of the TEC, I got nothing.

I read that you need to have solids contacting both sides of the TEC, which is what I have, I just added a thermal joint between the TEC/aluminum interfaces.  Is this allowed?

Also, has anyone ever tried to run a transient analysis with a TEC?